Optimization of SrTiO/sub 3/ for applications in tunable resonant circuits

Treece, Randolph E.; Thompson, James B.; Mueller, Carl H.; Rivkin, T. V.; Cromar, M. W.

doi:10.1109/77.621714

Cited by 64 publications

(23 citation statements)

References 8 publications

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“…An example, where it was applied, is the growth of SrTiO 3 thin films on LaAlO 3 substrates to produce electronically tunable microwave devices such as resonators, filters, and phase shifters. [54][55][56][57][58][59] Following the initial publications of Ohtomo and Hwang, various groups have grown thin films of LaAlO 3 by pulsed laser deposition on single-terminated SrTiO 3 substrates to investigate the properties of the two possible heteroepitaxial interface configurations. To obtain well controllable layer-by-layer growth, it is suitable to utilize a single-crystal LaAlO 3 target.…”

Section: Growth Of Atomically Controlled Interfacesmentioning

confidence: 99%

Structure–Property Relation of SrTiO₃/LaAlO₃ Interfaces

Huijben¹,

Brinkman²,

Koster³

et al. 2009

Advanced Materials

323

311

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A large variety of transport properties have been observed at the interface between the insulating oxides SrTiO3 and LaAlO3 such as insulation, 2D interface metallicity, 3D bulk metallicity, magnetic scattering, and superconductivity. The relation between the structure and the properties of the SrTiO3/LaAlO3 interface can be explained in a meaningful way by taking into account the relative contribution of three structural aspects: oxygen vacancies, structural deformations (including cation disorder), and electronic interface reconstruction. The emerging phase diagram is much richer than for related bulk oxides due to the occurrence of interface electronic reconstruction. The observation of this interface phenomenon is a display of recent advances in thin film deposition and characterization techniques, and provides an extension to the range of exceptional electronic properties of complex oxides.

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Section: Growth Of Atomically Controlled Interfacesmentioning

confidence: 99%

Structure–Property Relation of SrTiO₃/LaAlO₃ Interfaces

Huijben¹,

Brinkman²,

Koster³

et al. 2009

Advanced Materials

323

311

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show abstract

“…In these applications, the primary property requirements include the high tunability ¼ " 0 ð Þ À " E ð Þ ½ =" 0 ð Þ ð Þ , low dielectric loss and small temperature dependence. The currently most studied materials are SrTiO 3 [2], (Ba,Sr) TiO 3 [3,4] and (Pb,Sr)TiO 3 [5], and some desired results have been obtained, especially in (Ba,Sr)TiO 3 thin films [6,7]. However, their higher dielectric loss (tanδ>0.07 at 10 kHz) and larger temperature coefficient are the essential problems.…”

Section: Introductionmentioning

confidence: 95%

“…Recently, DC electric-field tunable dielectrics have attracted much scientific attention due to their important applications in the electric-field tunable devices such as voltagecontrolled oscillators, tunable filters and phase shifters [1][2][3][4][5]. In these applications, the primary property requirements include the high tunability ¼ " 0 ð Þ À " E ð Þ ½ =" 0 ð Þ ð Þ , low dielectric loss and small temperature dependence.…”

Section: Introductionmentioning

confidence: 99%

Tunable dielectric characteristics of (Ba0.95Ca0.05)(Ti1−y Sn y )O3 ferroelectric ceramics

Chen

Qin

2007

J Electroceram

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In order to explore potential candidates for field tunable dielectric materials, the present work was focused on investigating the microstructure, dielectric and tunable dielectric properties of A-and B-site substituted barium titanate ceramics. Large tunability with lower dielectric loss was obtained in the present ceramics at a quite weak bias field. The excellent tunable characteristics were achieved for y=0.15 at room temperature (25°C): tunability=26%, tanδ<0.01 at 10 kHz under a very weak bias DC electric field of 2.1 kV/cm.

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“…Nowadays, a new type of electronic device that uses the variation in dielectric constant of polar dielectrics with applied DC electric fields has been developed extensively as next-generation radar and microwave communication devices [1][2][3]. The tunable components made with ferroelectric materials have the advantages of low DC power consumption, low cost, and fast tuning [4].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear properties of antimony-doped BaTiO3 ceramics

et al. 2015

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Barium titanate nanopowders doped with various concentrations of antimony were synthesized by polymeric precursors method based on modified Pechini process. Obtained powders were pressed and sintered at 1,573 K for 8 h. The temperature dependence of dielectric permittivity pointed on the significant influence of added antimony on dielectric properties of obtained materials. The analysis of impedance spectrum in the temperature range 250-445 K has shown the presence of one semicircle that corresponds to the grain contribution but impedance spectrum at 773 K showed possible overlapping of two semicircles indicating also grain boundary resistivity. The total specific resistivity obtained from impedance analysis showed modest PTCR jump in the heavily doped barium titanate ceramics. The electric field dependence of permittivity of the ceramics was investigated in detail. The experimental data were analyzed using Johnson model.

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Optimization of SrTiO/sub 3/ for applications in tunable resonant circuits

Cited by 64 publications

References 8 publications

Structure–Property Relation of SrTiO₃/LaAlO₃ Interfaces

Structure–Property Relation of SrTiO₃/LaAlO₃ Interfaces

Tunable dielectric characteristics of (Ba0.95Ca0.05)(Ti1−y Sn y )O3 ferroelectric ceramics

Nonlinear properties of antimony-doped BaTiO3 ceramics

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Optimization of SrTiO/sub 3/ for applications in tunable resonant circuits

Cited by 64 publications

References 8 publications

Structure–Property Relation of SrTiO3/LaAlO3 Interfaces

Structure–Property Relation of SrTiO3/LaAlO3 Interfaces

Tunable dielectric characteristics of (Ba0.95Ca0.05)(Ti1−y Sn y )O3 ferroelectric ceramics

Nonlinear properties of antimony-doped BaTiO3 ceramics

Contact Info

Product

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Structure–Property Relation of SrTiO₃/LaAlO₃ Interfaces

Structure–Property Relation of SrTiO₃/LaAlO₃ Interfaces